%I #6 Apr 02 2016 18:43:21
%S 0,0,0,0,0,8,27,69,154,309,546,889
%N A269747(n) - A270805(n).
%C Number of regular tetrahedra in an n-node-per-edge tetrahedral grid that do not have all four vertices on the boundary of the parent grid.
%Y Cf. A269747, A270805.
%K nonn,more
%O 0,6
%A _N. J. A. Sloane_, Apr 02 2016